Mineralogy Database

Thermonatrite Mineral Data

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General Thermonatrite Information

Help on Chemical  Formula: Chemical Formula: Na2CO3•(H2O)
Help on Composition: Composition: Molecular Weight = 124.00 gm
   Sodium    37.08 %  Na   49.98 % Na2O
   Hydrogen   1.63 %  H    14.53 % H2O
   Carbon     9.69 %  C    35.49 % CO2
   Oxygen    51.61 %  O
            ______        ______ 
            100.00 %      100.00 % = TOTAL OXIDE
Help on Empirical Formula: Empirical Formula: Na2(CO3)•(H2O)
Help on Environment: Environment: Dry lakes in arid regions.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1845
Help on Locality: Locality: Vesuvius, Campania, Italy. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named from the Greek for heat and natron, as the dehydration product from heating natron.
Help on Name Pronunciation: Name Pronunciation: Thermonatrite + Pronunciation Say THERMONATRITE
Help on Synonym: Synonym: ICSD 6293
  PDF 8-448

Thermonatrite Image

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  Nacaphite   Thermonatrite

Comments: Sparse pale yellow-brown microcrystal and crystalline nacaphite with white thermonatrite on a dark matrix.
Location: Khibiny Massif, Kola Peninsula, Murmansk District, Russia. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

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Comments: Granular thermonatrite.
Location: Eruption of 1859, Vesuvius, Campania, Italy. Scale: See Photo.
© Jeff Weissman / Photographic Guide to Mineral Species

Thermonatrite Crystallography

Help on Axial Ratios: Axial Ratios: a:b:c =2.0422:1:1.2324
Help on Cell Dimensions: Cell Dimensions: a = 10.72, b = 5.249, c = 6.469, Z = 4; V = 364.01 Den(Calc)= 2.26
Help on Crystal System: Crystal System: Orthorhombic - Pyramidal H-M Symbol (mm2) Space Group: P ca21
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.768(1), 2.372(0.6), 2.753(0.55),

Physical Properties of Thermonatrite

Help on Cleavage: Cleavage: {100} Indistinct
Help on Color: Color: Colorless, Grayish yellow, Grayish, Yellowish, White.
Help on Density: Density: 2.255
Help on Diaphaneity: Diaphaneity: Transparent to translucent
Help on Fracture: Fracture: Sectile - Curved shavings or scrapings produced by a knife blade, (e.g. graphite).
Help on Hardness: Hardness: 1 - Talc
Help on Luster: Luster: Vitreous - Dull
Help on Streak: Streak: white

Optical Properties of Thermonatrite

Help on Gladstone-Dale: Gladstone-Dale: CI meas= 0.022 (Excellent) - where the CI = (1-KPDmeas/KC)
CI calc= 0.025 (Excellent) - where the CI = (1-KPDcalc/KC)
KPDcalc= 0.2139,KPDmeas= 0.2143,KC= 0.2192
Ncalc = 1.49 - 1.5
Help on Optical Data: Optical Data: Biaxial (-), a=1.42, b=1.506, g=1.524, bire=0.1040, 2V(Calc)=46, 2V(Meas)=48.

Calculated Properties of Thermonatrite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=2.25 gm/cc
note: Specific Gravity of Thermonatrite =2.26 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0013156205
Boson Index = 0.9986843795
Help on Photoelectric: Photoelectric: PEThermonatrite = 0.74 barns/electron
U=PEThermonatrite x rElectron Density= 1.68 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Thermonatrite is Not Radioactive

Thermonatrite Classification

Help on  Dana Class: Dana Class: (15)Hydrated Carbonates
  (15.01)where A+ (XO3) � x(H2O)
  (15.01.01)Dana Group Thermonatrite Na2CO3•(H2O) P ca21 mm2
Help on  Strunz Class: Strunz Class: 05.CB.05 05 - CARBONATES (NITRATES)
  05.C - Carbonates without Additional Anions, with H2O
  05.CB -With large cations (alkali and alkali-earth carbonates)
05.CB.05 Thermonatrite Na2CO3•(H2O) P ca21 mm2

Other Thermonatrite Information

Help on References: References: NAME( Ford32) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(Ford32)
Help on See Also: See Also: Links to other databases for Thermonatrite :
1 - Alkali-Nuts(English)
2 - Alkali-Nuts(Francais)
3 - Am. Min. Crystal Structure Database
4 - Athena
5 - EUROmin Project
6 - Ecole des Mines de Paris
7 - GeoScienceWorld
8 - Google Images
9 - Google Scholar
10 - Handbook of Mineralogy (MinSocAm)
11 - Handbook of Mineralogy (UofA)
12 - MinDAT
13 - Mineralienatlas (Deutsch)
14 - Online Mineral Museum
15 - QUT Mineral Atlas
16 - Ruff.Info

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Dana No: Strunz No: 05.CB.05





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